Valve



Jan. '8, 1946. W- OSBURN4 2,392,800 4 VALVE Filed Jan. 5, 1944 /ll/ @We l INVENTORL HDA/'HRD N. 555mm'.

Inthe operation of the device,rthe position of the plug I9 4with respect to the seat I is determinedV by the position of the cams 20 on theY lugs I8. Rotation of the actuator I by means of the valve stem I3'fand handle rvldcauses the cams to iride lonathe lugs, thereby .alteringthe Y elevation of the plug as the fingers 22 slide in the slots I6. Y ,In the raised or open position the indentations 23V receive the upper ends of the -l 1,02 of the valve plug,

said lugs between adjacent cams in the seated position of said plug.

2. A valve comprising a body formed with an inlet and an outlet and having a laterally extending boss, a valve seat formed between said inlet and said outlet, said body having passages communicating respectivelyl with oppositergsides of 'saidvaslve' seat,:a plurality of lugsextending inwardly of said body and towards the projected center of said seat, a valve plug rotatably mounted in said boss and adapted to close upon said seat,

' a plurality of shoulderV cams'extending from said lugs' I8; AV positive lock, resistant tovibration, A. is thereby provided, although vitl-can be' released.y

by manual force on the handle. I4; The closed' position is determined by the abutment of the faces 2l lagainst one Vside of each lug, with the lugs extending slightly into the spaces 2 I, and is iingers 22 extend only a slight distance into the slots I6v and are permitted a small degree of lat- Y eral play. VLikewise the lugs` Iare slightly loose between the cams, withr the result'that the plug I9 is Vpermitted to cock or tilt under the action .of the spring' 2lik ifV necessitated by an unevenly worn valve, seat or washer in orderA to close thpe Y seat 1 completely.

The device is intended for vuse'especially in va suction line, for example, one that extendsV from the motor of a tractor to the brakes of a'VV trailer. In such case the outlet 3 is connected to the lovv pressure side of the system. When the valve lisclosed, the chamberV within the'boss 4 is at atmospheric pressure While the lower surface of I the washer 24 is exposed to the reduced pressure yin the outlet 3. The pressure differential supplements the spring 26in holding the valve closed. The angular distance from one end of each cam to the other end is preferably 90 sojthatthe valve plug is moved from openV to closed position, or viceversa by a quarter turn of the handle I4. The spaces 2|V therefore have an angular extent of 30 each. f ,a l

With the exception of the stem I4,spring 26 and washers, all parts of the valve are die-cast. thus requiring no machining. yThe stem, although andeasy.V Y, Although a specific embodiment of the invention has beenshown and described in detail yit will be understood that alterations in the' details of construction may be made without departure from the scope of the invention as expressed in the annexed claims.` .l ,WhatIclaimis: v

1. A valve comprising a body formed with an inlet and ,anjoutlet and having a laterally extending boss, avalve seatV formed between 4saidinlet Y and said outlet, saidbodyyhaving passages comrnunicatingV respectively with opposite sides of said valve seat, a plurality-of relatively narrow lugs extending inwardlyrof said body andtowards the projected center of said seat, a valve plug rotatably mounted in said boss and adapted to close V`plug and riding respectively on said lugs, said cams lying at the same elevation axially of said plug, and means for rotating said plug, said plug being relieved between said cams to receive the lugs between Vadjacent cams in a Vslightly loose condition when the plug is in closed position, and

` maintained by the spring 26. In this position the 1 'preferablyhofz brass, is alsov an inexpensive part.

general, the construction of the valve is simple and inexpensivey and thel operation is fast 56 aspring bearing upon said plug, whereby to compensate for irregularities in the wear of said vseat "and plug.

x 3. A valve comprising a body iormed with an c inlet and an outletand having a laterally extendving boss, a valve seat formed between said in.- let and said outlet, said body having pfSSages communicating respectively with oppositeV sides of Vsaid valve seat, a plurality of relatively narrow lugs lextendinginwardly of said body and towards the projected center of said seat, a valve plug rotatably mounted inV said boss and adapted to close upon saidseat, a pluralityof shoulder cams extending from said plug and riding respectively on said lugs, said cams lying at the same elevation axially of said plug, an actuator rotatably mounted in said boss and having length:- wise slots, fingers extending from said plugand slidably received inl said slots, each .cam having an indentation in its lower end adapted to receive the upper end of the corresponding lug, andv means for rotating said plug.

fl. A'valve comprisingl a, body formed With' an inlet and an outlet and having a laterally extending boss, a valve seat formed between said inlet and said outlet, said body having passages communicating respectively with opposite sides of cams extending from said plugand riding respectively on said lugs, said cams lying' at'the same elevation axially of said plug, an actuator rotate ably mounted in said boss and havingv length wise slots, fingers extending from saidfplug 'and slidably receivedin said slots, each cam having Y an indentation in its lower end adapted toreceiv'e the upper end of theVV corresponding lug,v` a springdisposed between said .plu'g and saidactuator, and means for rotating Vsaid plug.vr A f v 5. A valve vcomprising ,a body formed'withan inlet and an outlet' and having a laterally Yextending boss, a valve seat formed betweenA said Y, inlet and said outlet, said body having passages upon said seat, a plurality of shoulder cams extending from said plug and riding respectively on Y ing upon said plug,.and means for rotating said plug, said cams being spaced apart to receive communicating respectively `with opposite' 'sides of said valve seat, a plurality of lugs extending inwardly kof said body Iand towards the projected center of said seat, a valve plug rotatably mountedy in said boss and adapted to close upons'aid seat, a plurality of Ashoulder cams extendingl from said plug and riding respectively'A onV said lugs,y said camsV lying at the', same elevation 'axially of said plug, an actuator rotatably. mounted in said "to-stsv and havingy 1eng'tnwise siojtsjjiigers vextending from 'said' plug 'and slidablyrceived in said slots, each cam having an indentation in its lower end adapted to receive the upper end of the corresponding lug, said cams being spaced apart to receive the lugs between adjacent cams in a slightly loose condition when the plug is in closed position, said fingers having slight lateral play in said slots, and a spring bearing upon said plug, whereby to compensate for irregularities in the Wear of said seat and plug.

6. A valve comprising a body formed with an inlet and an outlet and having a laterally extending boss, a valve seat formed between said inlet and said outlet, said body having passages communicating respectively with opposite sides of said body and towards the projected center of said seat, a plurality of lugs extending inwardly of said body and towards the projected center of said seat, a valve plug rotatably mounted in said boss and adapted to close upon said seat, a plurality of shoulder cams extending from said plug and riding respectively on said lugs, said cams lying at the same elevation axially of said plug, an actuator rotatably mounted in said boss and having lengthwise slots, fingers extending from said plug and slidably received in said slots, said boss having a closed top over said actuator, an operating stem rotatably mounted in said top and attached to said actuator, a washer mounted beneath said top and fitted around said stem, and a spring disposed between said plug and actuator, whereby to compress said Washer against said top and around said stem.

7. A valve comprising a body formed with an inlet and an outlet and having a laterally extending boss, a valve seat formed between said inlet and said outlet, said body having passages communicating respectively with opposite sides of said valve seat, a plurality of relatively narrow lugs extending inwardly of said body towards the projected center of said seat, a valve plug rotatably mounted in said boss and `adapted to close upon said seat, a plurality of shoulder cams extending from said plug and riding respectively on said lugs, said cams lying at the same elevation axially of said plug, an actuator rotatably mounted in said boss and having lengthwise slots, and ngers extending from said plug and slidably received in said slots.

HOWARD W. OSBURN.' 

